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23 July, 19:06

Four gallons of gasoline cost 16.80. what is the price of gasoline in terms of gallons per dollar

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Answers (2)
  1. 23 July, 21:50
    0
    One gallon cost $3.20

    Step-by-step explanation:

    You know that 4 gallons are %16.80.

    So, you divide 16.80 by 4,

    16.80:4

    =3.2

    Conclusion, 1 gallon is $3.20
  2. 23 July, 22:19
    0
    Answer: 4.20

    Step-by-step explanation:

    One way to make this easier is to write the units.

    You have $16.80 / 4 gallons. That's $4.20 per gallon, or we can write 4.20 dollars/gallon.

    Since you want gallons per dollar, just invert the 4.20:

    N gallons / dollar = (1/N) dollars / gallon:

    1 / (4.20 dollars/gallon) = 0.2381 gallons / dollar.

    I hope this makes sense.

    (Sanity) Check: 0.2381 gallons for $1 ... That's a little less than one quarter gallon for $1, so if I wanted an entire gallon it would be a little over $4. Looks reasonable.
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